Alternative Materials for EV Motors
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Iron Nitride Magnets (Niron)
- Description: These magnets have a field strength nearing that of neodymium iron boron (NdFeB) and are being developed by companies like Niron, which has backing from major automakers like Volvo, Stellantis, and GM.
- Advantages: Could offer similar performance without using rare earths.
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Ferrite Magnets (Proterial)
- Description: Proterial, previously Hitachi Metals, is working on NMF15 ferrite magnets that provide the highest performance among ferrites.
- Advantages: More cost-effective and abundant than rare earth magnets.
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MnBi-based Permanent Magnets
- Description: Developed at the Ames Laboratory, these magnets are alternative to rare earth metals like neodymium and dysprosium.
- Advantages: Could make electric vehicles more affordable and sustainable.
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Copper Coils
- Description: Replacing the rare earths in the rotating part of the motor with copper coils is another approach being explored, particularly by researchers at Texas A&M University.
- Advantages: More accessible and expected to be cheaper, relying on abundant materials and reducing foreign dependency.
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Strontium-Ferrite and Manganese-Aluminum-Carbon Alloys
- Description: Part of the PASSENGER EU project aimed at developing these materials for permanent magnet production in Europe.
- Advantages: These materials focus on sustainability and localization of production.
These alternatives aim to address the environmental, financial, and social concerns associated with traditional materials used in EV motors.
Original article by NenPower, If reposted, please credit the source: https://nenpower.com/blog/what-are-the-most-promising-alternative-materials-for-ev-motors/
